Oh yes, these moments are too rare. One has to hold them all dear.

I'm kind of new with the whole writing thing but got stuck in my first try as well. But that was in German and for other reasons (hot scenes work way better in English:). I'm planning to try this particular idea in English some other time and hope it's going to work.
Therefore I can feel for you. It's so sad to have this great idea in mind but got stuck writing it. Maybe one day it'll work out.
With the current fic I need to try it again. They'll meet in the next scene for the first time in years and I'm looking forward to writing it :)